Networked sound masking system with centralized sound masking generation
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a sound masking and networked technology, applied in the field of sound masking, can solve the problems of reducing the comfort level of acoustic perception, reducing speech privacy, and high noise distraction level
What is AI technical title?
AI technical title is built by PatSnap AI team. It summarizes the technical point description of the patent document.
a sound masking and networked technology, applied in the field of sound masking, can solve the problems of reducing the comfort level of acoustic perception, reducing speech privacy, and high noise distraction level
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[0040]Reference is first made to FIG. 1, which shows in block diagram form a networked sound masking system according to the present invention and indicated by reference 1.
[0041]As shown in FIG. 1, the networked sound masking system 1 comprises a control unit 2, and a network 10 comprising a plurality of standard master sound masking units or master hub units 14, indicated individually by 14a, 14b, 14c, . . . 14n, one or more master sound masking switch units or master switch hubs 16, one or more master sound masking power units or master power hubs 18, and one or more satellite units or hubs 20, indicated individually by references 20a, 20b, 20c. The physical connections for the network 10 between the master sound masking units 14, 16, 18 may comprise 5 or 4 conductors. In a 5 conductor arrangement, two conductors carry power, two conductors provide a communication channel for control, sound masking and paging signals, and one conductor provides for ground in an AC powered implemen...
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Abstract
A sound masking system for shaping the ambient noise level in a physical environment. The sound masking system comprises a networked and distributed system having a number of master units coupled together and to a control unit. One or more of the master units may include satellite sound masking units which function to reproduce an audio signal generated by a central sound masking module. The audio signal comprises a sound masking signal, a paging signal or a sound masking signal mixed with a paging signal. The sound masking signal is generated by the central sound masking module or a selected from a number of sound masking signal inputs at the control unit. Each of the master units is addressable over the network by the control unit enabling the control unit to control the contour, spectral band, and gain characteristics of the audio output signal. The system may also include a remote control unit which provides the capability to tune and adjust each master sound masking unit in situ without requiring physical access through the ceiling installation.
Description
FIELD OF THE INVENTION[0001]The present invention relates to sound masking, and more particularly to a networked system with centralized sound masking generation.BACKGROUND OF THE INVENTION[0002]Sound masking systems are widely used in offices and similar workplaces where an insufficient level of background sound results in diminished speech privacy. Such environments suffer from a high level of noise distractions, and lower comfort levels from an acoustic perspective. Sound masking systems operate on the principle of masking which involves generating a background sound in a given area. The background sound has the effect of limiting the ability to hear two sounds of similar sound pressure level and frequency simultaneously. By generating and distributing the background noise in the given area, the sound masking system masks or covers the propagation of other sounds in the area and thereby increases speech privacy, reduces the intrusion of unwanted noise, and improves the general ac...
Claims
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